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Figure 4-4. SPA-942 keypad
               This is mostly because their configuration GUI offers hundreds of configurable pa-
               rameters.

               We don’t care about that. Here’s what you need to know to get an SPA-942 working
               with your Asterisk system (and, we hope, most other Linksys VoIP devices as well).

               Logging in to the phone
               The first thing you need to do is get the IP address of the phone so you can log in to
               the GUI interface. From the phone itself, select the icon that looks like a piece of paper
               with a dog-eared corner (right below the envelope icon). This is the Settings button,
               and is shown in Figure 4-4.
               To get the IP address of the phone, press the Settings button, followed by 9 (or use
               directional pad and scroll down to Network). Then press the select button (there is a
               row of 4 buttons under the LCD screen—select is the leftmost button). The second field
               should show you the IP address of the phone.
               Now open your browser, enter the IP address into the address bar, hit Enter, and you
               will be at the Info screen of the phone.

               Registering your phone to Asterisk

               Select the Admin Login link in the upper-right corner of the screen. Once you’ve done
               this, you will be given several new tabs, such as Regional, Phone, Ext 1, Ext 2, and User.
               Select the Ext 1 tab which will set up our first line. Then make the following menu
               selections:
                 1. General → Line Enable → yes
                 2. NAT Settings → NAT Mapping Enable → no
                 3. NAT Settings → NAT Keep Alive Enable → no


               96 | Chapter 4: Initial Configuration of Asterisk
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